Product codes are powerful codes that can be used to correct errors or recover erasures. The simplest form of a product code is that where every row and every column is terminated by a single parity bit, referred to as single parity check (SPC) product code. This code has a minimum distance of four and is thus guaranteed to recover all single, double, and triple erasure patterns. Judging the co...

A product channel code is proposed to protect progressively compressed and packetized image data that is transmitted across noisy channels. Across packets, the product code is composed of Reed-Solomon codes. Within packets, the product code uses the concatena-tion of a rate compatible punctured convolutional code and an error detecting parity check code. The beneets include exibility in terms o...

Product Line Engineering is an approach for planned, structured and product-centred reuse of code and non-code artifacts. Having a broad expertise and a certain domain understanding in the domain of the product line is one of the key factors and practice areas in Product Line Engineering [CN99]. Basis of domain understanding are usually legacy systems with many existing legacy assets in differe...

The marketing literature has addressed the issues of heterogeneity and erKlogeneity when estimating a choice model with household-level panel data. When using these data at the stockkeeping unit or the Universal Product Code level, choices for each Item in each of the time periods under consideration cannot be observed. Without such information, it is difficult to control for itemand time perio...

This paper describes the UPC’s bilingual n-gram approach to statistical machine translation, which implements the log-linear combination of a bilingual n-gram translation model with six additional feature functions. A brief description of the complete system is presented and special attention is devoted to the novel features and reordering strategies that have been recently implemented. Transla...

Software product lines (SPLs) allow to generate tailormade software products by selecting and composing reusable code units. However, SPLs with hundreds of features and millions of possible products require an appropriate support for semi-automated product derivation. We envision this derivation to be extended by non-functional properties that are associated to code units and domain features. C...

QR code is the type of matrix barcode, which was first designed for the automotive industry by Denso Wave in Japan. The QR Code system has become admired outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes. This paper take account of QR codes basics, its real time application in day to day life and research areas associated....

Master of Science in Information and Communication Technologies by Georgios Dimopoulos In this thesis, the YouTube service and the traffic generated from its usage was analyzed. The purpose of this study was to identify the information in the monitored traffic that could be used as metrics or indicators of the progress of individual video sessions. For this purpose, a tool was developed to perf...

The modeling of complex target response in SAR imagery is the main subject of this paper. The analysis of a large database of SAR images with polarimetric and interferometric capabilities is used to accurately establish how the different structural parts of targets interact with the incident signal. This allows to relate the reflectivity information provided by SAR images with specific geometri...